Table 3.

Effect of strain on nest usage in three-tier aviary system.

Strain	Mean		CI
		Odds1
Brown	2.13		1.79–2.54
White	2.65		2.24–3.15
Treatment comparison		Odds ration2
Brown vs. White	0.80		0.63–1.03
Source of variation		P-values
Strain		0.071
Age		0.982
Strain × age		0.999

¹Odds of observing eggs in nest area over not observing them for each treatment group.

²Ratio of the odds of observing eggs in nest area for 2 treatment groups.